Osa Weather (Next 3 days): The snow forecast for Osa is: Moderate rain (total 15.0mm), heaviest on Thu afternoon. Freeze-thaw conditions (max 12°C on Wed afternoon, min 0°C on Tue night). Winds increasing (calm on Wed morning, strong winds from the S by Thu morning).
Osa Weather (Days 4-6): Heavy rain (total 68.0mm), heaviest during Thu night. Very mild (max 19°C on Sun morning, min 9°C on Thu night). Winds decreasing (strong winds from the SSW on Thu night, calm by Sat night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 8 |  | ||||
| Bottom Lift: | 10 | |
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | |  |  |  |  | | | |  | | | |
rain shwrs | rain shwrs | clear | clear | clear | clear | some clouds | cloudy | mod. rain | heavy rain | mod. rain | mod. rain | some clouds | some clouds | some clouds | clear | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
3 | 2 | — | — | — | — | — | — | 10 | 49 | 10 | 9 | — | — | — | — | |
max °C | 11 | 7 | 5 | 1 | 11 | 12 | 5 | 11 | 9 | 13 | 15 | 14 | 11 | 15 | 15 | 10 |
min °C | 6 | 4 | 3 | 0 | 7 | 9 | 4 | 10 | 9 | 9 | 14 | 13 | 9 | 12 | 12 | 9 |
3 | 0 | -2 | -5 | 6 | 9 | 1 | 6 | 5 | 4 | 12 | 10 | 8 | 12 | 12 | 9 | |
80 | 86 | 58 | 62 | 29 | 41 | 36 | 48 | 82 | 94 | 99 | 98 | 82 | 77 | 69 | 53 | |
2900 | 1900 | 1150 | 950 | 2000 | 3100 | 3600 | 3550 | 3650 | 4000 | 3800 | 3750 | 3700 | 3500 | 3250 | 3750 | |
 | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:45 | — | — |
 | — | — | 6:36 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — |
Moderate rain (total 15.0mm), heaviest on Thu afternoon. Freeze-thaw conditions (max 12°C on Wed afternoon, min 0°C on Tue night). Winds increasing (calm on Wed morning, strong winds from the S by Thu morning).
Heavy rain (total 68.0mm), heaviest during Thu night. Very mild (max 19°C on Sun morning, min 9°C on Thu night). Winds decreasing (strong winds from the SSW on Thu night, calm by Sat night).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Mar 2026 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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